RESOLVED FIXED307861
[iOS] [Scroll anchoring] Scroll anchoring when zoomed is janky 
https://bugs.webkit.org/show_bug.cgi?id=307861
Summary [iOS] [Scroll anchoring] Scroll anchoring when zoomed is janky
Simon Fraser (smfr)
Reported 2026-02-13 15:29:38 PST
After zooming, scroll anchoring jumps around sometimes (related to changes in layout viewport). The macOS test (fast/scrolling/scroll-anchoring-with-page-scale.html) also fails.
Attachments
Testcase; zoom and scroll down on iOS (8.40 KB, text/html)
2026-02-16 16:12 PST, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2026-02-13 15:29:44 PST
<rdar://problem/170351334>
Simon Fraser (smfr)
Comment 2 2026-02-16 16:12:10 PST
Created attachment 478379 [details] Testcase; zoom and scroll down on iOS
Simon Fraser (smfr)
Comment 3 2026-02-16 16:14:57 PST
Pull request: https://github.com/WebKit/WebKit/pull/58818
EWS
Comment 4 2026-02-16 20:14:15 PST
Committed 307683@main (06981629dcc2): <https://commits.webkit.org/307683@main> Reviewed commits have been landed. Closing PR #58818 and removing active labels.
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